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猫咪官网入口点击进入、所2024年系列学术活动(第016场):Hamid Hezari 教授 University of California, Irvine(加州大学尔湾分校)

发表于: 2024-03-27   点击: 

报告题目:Inverse spectral problem for ellipses

报 告 人:Hamid Hezari 教授

所在单位:University of California, Irvine(加州大学尔湾分校)

报告时间:2024年3月28日 10:00

报告地点:ZOOM ID:203 271 7634, 密码:123456

校内联系人: 张凯 [email protected]


报告摘要:This talk is about Kac's inverse problem from 1966: "Can one hear the shape of a drum?" The question asks whether the frequencies of vibration of a bounded domain determine the shape of the domain. First we present a quick survey on the known results. Then we discuss the key connection between eigenvalues of the Laplacian and the dynamics of the billiard, which is governed by the so called “Poisson Summation Formula“. Finally we discuss our main theorem that "one can hear the shape of nearly circular ellipses". This was a joint work with Steve Zelditch (9/13/1953 – 9/11/2022).


报告人简介: Prof. Hezari obtained his PhD from Johns Hopkins University in 2009. Following that, he served as a CLE Moore instructor at MIT from 2009 to 2012. During the fall of 2010, he held a postdoctoral position at the MSRI program on inverse problems. Currently, he holds a professorial position at UCI.

His research primarily focuses on analysis and PDEs. Prof. Hezari has a keen interest in semiclassical/microlocal analysis and its diverse applications in PDE and mathematical physics, particularly in spectral geometry and quantum chaos. Notably, he has contributed significantly to the field with 28 high-quality publications, including works published in Annals.